Shell for an air compressor



FIG. 1 is a perspective view of the shell of an air compressor showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plain view thereof;

FIG. 7 is a bottom plain view thereof; and,

FIG. 8 is a referential side plane view of the shell for an air compressor covering a control device mounted on an air tank of the air compressor, wherein the broken lines are shown for illustrative purposes and form no part of the claimed design. 

The ornamental design for a shell for an air compressor, as shown and described. 